Metallic boat



2 Sheets-Sheet 1 .l Q. w

METALLIC Bom?v Filed June 14, 1959 E. HECKMANN Nl, im

April 7, 1942.

IWW. Bw

ATTORNEYS April 7, 1942. E. HECKMANN v METALLIC BOAT Filed` June 14, 1939 2 Sheets-Sheet 2 r l INVENTIOR E, @gi/,mx g

ATTORNEYS Patented pr. '7, 1942 UNITED STATES 'PAT lvazNr oFFIcE METALLIC Boar Edward Heckmann, Columbia,'Mo. Application June 14, 1939, Serial No. 279,212 ,(cl. 96

1 Claim.

This invention relatesV to rmetallic boats, and its general object is to provide a boat or vessel that includes a hull constructed entirely of sheet metal sections preferably disposed. transversely of the hull and shaped and2 secured together to provide the ends, sides and bottom thereof.

A further Object s to provide a boat including a hull made up of sheet metal sections that are hanged to facilitate securing the sections together, as the flanges are disposed in face to face abutting relation and xed accordingly by welding orl other suitable means in a manner to provide closed joints, thus eliminating open seams and cracks and thereby deterioration by rust, as the closed joints can be painted in their entirety and the fixed together flanges likewise act as reinforcing'ribs which add materially to the strength and rigidity of the boat.

Another object is to provide boat hull forming sheet metal sections of various sizes and shapes,

for the construction of large or small boats of different types, including row, sail and motor powered boats, having sides, sterns and bows of any desired or well known shape.

A further object is to provide boat hull formingl sections each being made from a single flat metal blank stamped, cut or otherwise formed in theproper shape and marked to indicate-the manner of bending the same into a section, and the blanks may be numbered for identication purposes to facilitate assembling the sections in hull formation.

Another object is to provide a boat that may include lairtight compartments at the bow and stern thereof to eliminate all possibility of sink- A still further object is to provide a metal boat that is light in weight, simple in construction, can be easily, expeditiously and inexpensively constructed especially due to the use of the hull forming sections, yet the boat is eX- tremely efficient in use and service.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, villustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or correspondingl parts throughout the several views, and in which:

Figure 1 is a top plan View of a row boat constructed in accordance with the present invention. f f

Figure 2 is a? sectional view taken approximately on line 2'2 of Figure 1, looking in the direction of the arrows. I

Figure 3 is a sectional View taken approximately on line 3-3 of Figure 1, looking in the direction of the arrows.

Figure 4 is a perspective view of one of the intermediate sections used in the construction of my boat.

Figure 5 is a plan view of a blank from which the intermediate section of Figure fl is formed.

Figure 6 is a fragmentary sectional view taken through a modified lform of intermediate section, with a gunwale or oarlock strip secured to the upper end of the side wall portion thereof.

Figure 7 is a fragmentary plan view of the blank from which the 'section of Figure 6 is formed. v l

Figure 8 is a fragmentary top plan View illustrating a modied-form of hull construction.

Figure 9 is va fragmentary longitudinal sectional view taken through a further modified form. l

Referring to the drawings in detail, and particularly to the form` as shown in Figures 1 to 5 inclusive it ywill benoted thatthe hull of `that form includes a plurality of intermediate sections l, each being of identical shape and best shown in Figure 4, aswell as formed from a blank 2, shown in Figure'.l The blank of Figure 5 is cut, stampedv or otherwise formed from sheet metal into elongated rectangular formation, with triangular shaped notches 3 extending into the longitudinal edge portions thereof adjacent to their ends, thenotchesof each end being disposed in registration with each other, and eX- tending between the apex orinner ends of the notches 3 are transverse foldflines 4, while longitudinal fold lines 5 extend along the length of the blankfrom end to end and intersect the pointv of juncturel of the transverse fold lines with the inner ends of the notches.

The `blank 2 is folded along the lines 4 and 5 to provide abottom'wall 6 for the section, upright-walls l, longitudinal flanges 8 disposed along the: outerr edges of the bottom wall and at right angles thereto', and side flanges 9'formed on the edges Yof the upright walls. The notches 3 are of an angle so that the walls 1 will be arranged vat right angles with respect to the bottom wall, when the edges of the notches are disposed in abutting relation, as clearly shown in Figure 4. The abutting edges of the notches mai be weldedtogether.

Any number of sections l may be used, itfdeend sections=at both the and the end sections are also bentor folded' from' 2,279,234 upon the length of the boat to be conhaving oarlocks 24 mounted therein. However, it will be noted from Figure 3 thatample provision is made for receiving an outboard motor for that purpose the outer edges of the flanges Y are beveled to provide seats or grooves for the welding material III, which completely closes the joint between the flanges, thereby eliminating open seams and .cracksas well as the possibility of the formation of rustbetween lthe flanges.

It will .be obvious from the foregoing that'the flanges not only provide ample means to facil itate the joining together ofV the sections, but

by arranging them in face tion, they provide reinforcing ribs extending at equi-distantly spaced relation transversely. of the hull throughout the major portion 'of thelength". thereby materially l adding to the.

thereof, strength and rigidity of the boat, as will be apparent uponinspection ofFigure 1;

The hull in the forni of. Figures 1 1:03, likewise includes in its construction,y twoyrnetallic bow andy stern thereof blanks of sheet metal, but they differ from the intermediate sections, `as lwill .be noted upon inspection of Figure 3. Theinner and outer end sections II and I2 respectively at the stern of the'hull are provided with bottomwallsand upright side and end walls I3 and- I4` respectively, the side walls being of equal lengthV and vof the same length as the anges' 8 and the bottom walls being disposed at an upward inclination toward the stern. The. innermost side wall of the inner end section H is weldedto the outer flange of the outer'intermediate'section, asshown in Figure 3, and the other side wall is weldedto the adjacent` side wall of the outer end Vsection I2, the latter side wallsbeingf off-equal height and when secured` together are flush with the inner side wall of the inner endsection II to receive a deck plate I5 that is welded to the upper-ends of the latter'mentionedside walls I3 as wellas to the outer side wall of the section I2 for cooperation with" the side and end walls of the section I2 for y'cooperation with theside and end walls to provide airtight compartments I6, as will be apparent. The inner andouter. end sections II and I8 respectively at the bow of thev hull'are similar in'many respects to the sectionsv II `and I2, in that the sections'l'l and I8 include angular bottom walls and upright side and end walls I9 andZU, with thebottomwalls thereof disclosed at an` upward inclination toward the bow, the side wall of the. section I'Iv being welded tothe ange 8 ofthe adjacent intermediate section I, while the other side wall'of the section I1 iswelded to the innerside wall of the section I8', and the lattersidewalls have VVwelded to the upper ends thereof a deck plate' .2|Y which like the deck plate I5 is likewisewelded to theend walls to provide an airtight compartment 22. The end walls 20. are inclined. for disposal in substantially diverging relationiwith respect to each other toward the end of lthe bowiwhich terminates into a flat outer end; 'dueV tothe outermost side Wall I5 ofthe outer end section I8. From the abovedescription-v and disclosure in the drawing, it will be obvious that when the sections I, II, I2; `I1 and. I'8.are"w`elded" together thattlie bottom wallshthereo'f provide the bottorn ofi the hulland theendfwalls 1,1I4 and 20 provide the sides thereof; andf-v`velded` to the upper ends of 'the sides: are# gunwal`strps1-23 to face abutting rela-L T-as shown in Figure due to the extension of the outermost ,wall I3 above the deck plate I5. vIt will be further obvious that all of the parts are preferably welded together, and all of ythe joints are preferably beveled'to .provide grooves or seats for receiving the welding material I0, as clearly shown in Figures 3 and 9, thus reducing rust to.` a minimum and which tends to expedite the painting of the boat, due to the fact that open seams and cracks :have been eliminated.

In the modified form of intermediate section 6, it will be noted that the upright wall.` 25 is disposed at an outward inclination with respect to the bottom wall 26, as distinguished'fromthe right angle arrangement of the .upright wall 1 with respect to the bottom wall 6, and such is accomplished merely by changing the; angleV of the triangular` shaped notches, that is the notches-21 of the blank 2B areof less degrees than thatv of thenotches 3.

. Otherwise the intermediate section of Figure 6 is identical with that of Figure 4.

While the sections'A maybe of any size for constructing boats of 'various sizesin,the construction of large boats the sections` are not only disposed in side by side relation and welded accordingly, but are likewise disposed in end to end relation, with the end walls welded together, and in that eventthe end walls that extend along the longitudinal center ofthe hull in fact provide a fore andaft bulkhead. Such a construction-is shown in the modified' form of Figure 8 which likewise discloses a pointed bow portion i made up of a plurality of endsections 29.

In the modified form of.Figu're 9, the bottom wall of the bow is rounded; as distinguished from the straight lineconstruction of the form of Figures lto 3, otherwise `the structure of Figure 9 is preferably similar to thatof Figures `l to 3.

While I haveillustrated. boats or vessels having three typesv of bows, it'will of` coursebe understood that a boatV constructed in accordance with'my invention can bemade with any shape ofbow and stern, as the blanks from which the endA sections are formed may. be ,ofdifferent y shapes for'that purpose.

Any suitable oor Vmay Abe provided for the boats,'but I preferablyA provide axwood grating to rest upon the lianges 8. i Y

It is thought;` from" theV foregoing description that the advantages and-novel features-of the invention will`-be readily apparent. l

It is to be understood that changes may be madein the construction; and in the combination "andz arrangement of' the 'several parts, provided'that'such changesiall within the scope of the appended claim,

In a metal boat comprisingK ai hull including a pluralityof sheetmetal elongatedv rectangular intermediate/sections, eachprovided with a bottom-wall and upright end walls, upturned relatively narrow sde flanges formed 4on:and,extending alongthe length of thebottomxwall, inwardly directed flanges formed onthe ends of `the upthe bottom walls of the end sections being dis- 10 posed at an upward inclination ytoward their respective ends of the boat, metallic deck plates mounted on and Welded to certain walls of the end sections to provide airtight compartments, v

metallic; gunwale strips Welded to the sides of the boat and extending inwardly therefrom, and the flanges and Walls having beveled edges providing seats for receiving the Weldingfmaterial.

EDWARD HECKMANN. 

